blw@acsu.buffalo.edu (brian l wybaillie) (11/18/90)
hello, i am in the process of building a digital capacitance meter for a school design project and am looking for a crystal which will produce 40 MHz. i have checked the ECG catalog but the highest they go is 22 MHz. can anyone point me in the direction of such a beast. also, i was told that the "Pierce Oscillator" circuit was a popular configuration to use as a clock, but i am not sure if this will be adequate for this application. does anyone know if this is true and if so what other configurations exist which will produce a cleaner output clock? (CMOS,74HCTXX) if anyone can help me out with this, i'd appreciate if you could respond by e-mail and i'll summarize. thanks in advance, brian wybaillie telnet: blw@acsu.buffalo.edu bitnet: V091J47X@UBVMS.CC.BUFFALO.EDU
akcs.mine@vpnet.chi.il.us (rob narloch) (11/20/90)
Hmmm, I think you can still go to Radio shack and order crystals of any Megahertz from them. They are supposed to be used in those ancient police scanners that use crystals. I bought 2 crystals of 472 megahertz range... they should have the 40 meg you need. Call em and see. Have fun, MINE